Hong Kong is a territory of the People's Republic of China, facing Guangdong to the north and the South China Sea to the east, west and south. Hong Kong is a global metropolitan and international financial centre, and has a highly developed capitalist economy. Under the "one country, two systems" policy and according to Basic Law, it has a "high degree of autonomy" in all areas except foreign affairs and defence, which are the responsibility of the PRC Government. Hong Kong maintains its own currency, legal system, political system, immigration control, rule of the road and other aspects that concern its way of life, many of which are distinct from mainland China